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Astronomy Cast Ep. 238: Solar Activity

Article written: 11 Nov , 2011
Updated: 14 Jan , 2016
by

The Solar Cycle

The Sun looks like a harmless burning ball of fire in the sky: warm, life-giving and forever unchanging. But we know better, don’t we. It’s really a massive ball of churning hydrogen plasma, encased in twisting magnetic field lines, speckled with sunspots, and constantly disgorging vast plumes of radiation and charged particles. The Sun is very active indeed.

Click here to download the episode.

Or subscribe to: astronomycast.com/podcast.xml with your podcatching software.

“Solar Activity” shownotes on the Astronomy Cast website.

Nancy Atkinson is currently Universe Today’s Contributing Editor. Previously she served as UT’s Senior Editor and lead writer, and has worked with Astronomy Cast and 365 Days of Astronomy. Nancy is the author of the new book “Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos.” She is also a NASA/JPL Solar System Ambassador.

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3 Responses

  1. Member
    Anonymous says

    This one’s worth listening to twice! Nice…

  2. petr says

    wooo! Astronomy Cast! So many hours at work spent surreptitiously listening to it 🙂

  3. petr says

    wooo! Astronomy Cast! So many hours at work spent surreptitiously listening to it 🙂

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